Finding the Fourth Proportional to 1,396,939.90, 1,927,750.98 and 776,782.84
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Solution
The fourth proportional to 1,396,939.90, 1,927,750.98 and 776,782.84 is: 1,071,945.82
Step by Step Solution
- Step 1: Write the proportion equation
1,396,939.90 : 1,927,750.98 = 776,782.84 : x - Step 2: Convert to fraction form
1,396,939.90/1,927,750.98 = 776,782.84/x - Step 3: Cross multiply
1,396,939.90x = 1,927,750.98 × 776,782.84 - Step 4: Simplify right side
1,396,939.90x = 1,497,443,881,057.18 - Step 5: Solve for x
x = 1,497,443,881,057.18/1,396,939.90 - Step 6: Final answer
x = 1,071,945.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.